actions: use macos-15

Author: asdfugil

.github/workflows/build.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-13
+    runs-on: macos-15
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -17,7 +17,7 @@ jobs:
       - name: Select correct Xcode
         uses: mobiledevops/xcode-select-version-action@v1
         with:
-          xcode-select-version: 15.2
+          xcode-select-version: 16.4
 
       - name: Install dependencies (packages)
         run: |